The women's 100 metres hurdles event at the 1978 Commonwealth Games was held on 10 and 11 August at the Commonwealth Stadium in Edmonton, Alberta, Canada.
[1] Held on 10 August Qualification: First 3 in each heat (Q) and the next 2 fastest (q) qualify for the final.
Wind:Heat 1: ?
m/s, Heat 2: -0.2 m/s Held on 11 August Wind: +3.6 m/s